Before I came here I was confused about this subject. Having listened to your lecture I am still confused. But on a higher level.
Enrico FermiThere are two possible outcomes: if the result confirms the hypothesis, then you've made a measurement. If the result is contrary to the hypothesis, then you've made a discovery.
Enrico FermiWhatever Nature has in store for mankind, unpleasant as it may be, men must accept, for ignorance is never better than knowledge.
Enrico FermiOne might be led to question whether the scientists acted wisely in presenting the statesmen of the world with this appalling problem. Actually there was no choice. Once basic knowledge is acquired, any attempt at preventing its fruition would be as futile as hoping to stop the earth from revolving around the sun.
Enrico Fermi